Anti-corrosion food-grade high-pressure flange

Abstract

The utility model discloses an anti-corrosion food-grade high-pressure flange which comprises high-pressure flange bodies, and the high-pressure flange bodies are connected through fixing bolts. The high-pressure flange comprises a high-pressure flange body and further comprises a lining embedded in the high-pressure flange body, an anti-corrosion layer is arranged in the lining, the anti-corrosion layer is made of a polytetrafluoroethylene material, an anti-rust layer is further arranged in the lining, the anti-rust layer is located at the bottom of the anti-corrosion layer, and the anti-rust layer is made of a petrolatum anti-corrosion material. A top plate is slidably arranged in the high-pressure flange body, a fixing bolt is attached to the top of the top plate, and the outer end of the top plate is slidably connected to the fixing rod in a penetrating mode. The anti-corrosion food-grade high-pressure flange is provided with the anti-corrosion layer, the anti-corrosion effect on the high-pressure flange body can be achieved through the anti-corrosion layer, and the anti-corrosion layer has the long service life, so that the high-pressure flange body has the excellent anti-corrosion effect, the anti-corrosion layer is non-toxic, and food-grade safety is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure flanges, in particular to a corrosion-resistant food-grade high-pressure flange. Background Art

[0002] Through tight flange connections, high-pressure flanges can prevent food fluids from leaking between pipes or equipment, and maintain the purity and pressure stability of the fluid in the piping system;

[0003] After long-term use, the existing food-grade high-pressure flange will be corroded by the food fluid because the food fluid will flow through the food-grade high-pressure flange, and the high-pressure flange is not easy to clean. The corroded food-grade high-pressure flange will cause harm to the food fluid.

[0004] To address the above defects, a connection flange with a polyurethane anti-corrosion layer is disclosed with reference to publication number CN212273339U. The inner surface of the flange body is provided with a polyurethane anti-corrosion layer. The polyurethane material has high anti-corrosion performance and can well prevent the internal circulating liquid from corroding the flange, thereby making the flange have both good anti-corrosion performance and low manufacturing cost.

[0005] In response to the above defects, a petrolatum-coated anti-corrosion layer for metal pipe interfaces and connecting flanges with reference publication number CN202419039U is disclosed, which has been constructed. The petrolatum anti-corrosion paste can be applied by hand, brush, or scraper, and has good density and continuity; the soft petrolatum anti-corrosion tape can be closely combined with any part of the flange; the sealing putty can well fill and shape the depressions of irregular parts such as pipe interfaces and flanges. The outermost layer of protective adhesive can well protect the internal anti-corrosion layer, making it a dense petrolatum-coated anti-corrosion tape;

[0006] In the actual use of the above device, although the corrosion resistance of the flange is improved by adding an anti-corrosion coating, after long-term use, the flange will cause the anti-corrosion layer to crack due to the extended use time, which will only lead to a decrease in the corrosion resistance;

[0007] Therefore, we proposed a corrosion-resistant food-grade high-pressure flange that can solve the above problems well. Utility Model Content

[0008] The purpose of the utility model is to provide a corrosion-resistant food-grade high-pressure flange to solve the problem raised in the above-mentioned background technology that the flanges on the current market may crack in the anti-corrosion layer due to the extended use time after long-term use, thereby causing the anti-corrosion performance to decline.

[0009] To achieve the above object, the present invention provides the following technical solution: a corrosion-resistant food-grade high-pressure flange, comprising a high-pressure flange body, wherein the high-pressure flange bodies are connected by fixing bolts;

[0010] Also includes:

[0011] The high-pressure flange body is nested with an inner lining, and the inner lining contains an anti-corrosion layer, and the anti-corrosion layer is made of polytetrafluoroethylene material, and the inner lining also contains an anti-rust layer, the anti-rust layer is located at the bottom of the anti-corrosion layer, and the anti-rust layer is made of petrolatum anti-corrosion material.

[0012] Preferably, a top plate is slidably mounted inside the high-pressure flange body, a fixing bolt is attached to the top of the top plate, and the outer end of the top plate is slidably connected to a fixing rod, the upper and lower ends of the fixing rod are fixed inside the high-pressure flange body.

[0013] Preferably, a first spring is attached to the bottom of the outer end of the top plate, and the first spring is nested on the fixing rod, and the bottom of the first spring is connected to the inside of the high-pressure flange body.

[0014] Preferably, a pull rope is connected to the top of the outer end of the top plate, and the pull rope is connected to the winding roller by being wrapped around the inside of the high-pressure flange body, and the middle key of the winding roller is connected to the front end of the rotating rod, and the front and rear ends of the rotating rod are connected to the inside of the high-pressure flange body through bearings.

[0015] Preferably, a second spring is nested in the front end of the rotary rod, the front end of the second spring is connected to the inside of the high-pressure flange body, and the rear end of the second spring is connected to the front end of the winding roller.

[0016] Preferably, the rear end key of the rotary rod is connected to a gear, and the right side of the outer end of the gear is engaged with a push rod, and the push rod slides inside the high-pressure flange body.

[0017] Preferably, the top of the push rod extends into the interior of the storage rod to form a sealed sliding connection mechanism, and the storage rod is nested in the interior of the high-pressure flange body, and the interior of the storage rod contains air. The top of the storage rod is connected to the sealing ring through a pipe, and the sealing ring is fixed inside the high-pressure flange body.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the anti-corrosion food-grade high-pressure flange has relatively excellent corrosion resistance and can avoid corrosion of the fixing bolts. The anti-corrosion layer can make the high-pressure flange body have excellent corrosion resistance, and the expansion of the sealing ring can seal the fixing bolts, thereby preventing liquid from entering and causing corrosion. The specific contents are as follows:

[0019] (1) An anti-corrosion layer is provided, which can play an anti-corrosion role on the high-pressure flange body, and the anti-corrosion layer has a long service life, so that the high-pressure flange body has an excellent anti-corrosion effect, and the anti-corrosion layer is non-toxic, thereby achieving food-grade safety;

[0020] (2) A sealing ring is provided, and the fixing bolts squeeze the top plate, so that the top plate can allow the air in the storage rod to be transported to the inside of the sealing ring, so that the sealing ring can expand, and then the gap between the high-pressure flange body and the fixing bolts is reduced, thereby reducing the damage caused by liquid erosion, thereby achieving an anti-corrosion effect;

[0021] (3) A first spring is provided, and the first spring is attached to the bottom of the outer end of the top plate, and the first spring is nested on the fixing rod, and the bottom of the first spring is connected to the inside of the high-pressure flange body, and then the top plate can be limited by the first spring, thereby achieving the purpose of resetting, and then facilitating the next use;

[0022] (4) A second spring is provided, the second spring being nested through the front end of the rotary rod, the front end of the second spring being connected to the interior of the high-pressure flange body, and the rear end of the second spring being connected to the front end of the winding roller, so that the second spring can drive the rotary rod to reverse, thereby facilitating the reset of the push rod;

[0023] (5) An anti-rust layer is provided, and the interior of the inner lining also contains an anti-rust layer, the anti-rust layer is located at the bottom of the anti-corrosion layer, and the anti-rust layer is made of petrolatum anti-corrosion material, thereby preventing the high-pressure flange body from rusting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the front cross-section structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the liner analysis structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the front view structure of the fixing bolt of the utility model;

[0028] Figure 5 This is a schematic diagram of the front view structure of the sealing ring of the utility model;

[0029] Figure 6 For this utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0030] In the figure: 1. High-pressure flange body; 2. Inner lining; 201. Anti-corrosion layer; 202. Anti-rust layer; 3. Fixing bolt; 4. Top plate; 5. Fixing rod; 6. First spring; 7. Pull rope; 8. Winding roller; 9. Rotating rod; 10. Second spring; 11. Gear; 12. Top rod; 13. Storage rod; 14. Sealing ring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1:

[0033] The utility model solves the problem that the anti-corrosion layer 201 of the existing flange may crack after long-term use, thereby causing the anti-corrosion performance to deteriorate. The anti-corrosion layer 201 can make the high-pressure flange body 1 have excellent corrosion resistance.

[0034] The high-pressure flange body 1 is connected to the high-pressure flange body 1 by fixing bolts 3; the high-pressure flange body 1 also includes: an inner liner 2 is nested inside the high-pressure flange body 1, and the inner liner 2 contains an anti-corrosion layer 201, and the anti-corrosion layer 201 is made of polytetrafluoroethylene material, and the inner liner 2 also contains an anti-rust layer 202, the anti-rust layer 202 is located at the bottom of the anti-corrosion layer 201, and the anti-rust layer 202 is made of petrolatum anti-corrosion material;

[0035] refer to Figures 1 to 3 A layer of lining 2 is attached to the interior of the high-pressure flange body 1. The anti-corrosion layer 201 allows the lining 2 to have excellent anti-corrosion properties, so that the lining 2 can protect the high-pressure flange body 1, thereby preventing the high-pressure flange body 1 from being corroded when being transported by food liquids. In addition, the anti-rust layer 202 can prevent the high-pressure flange body 1 from rusting after long-term use, thereby increasing the service life of the high-pressure flange body 1.

[0036] Example 2:

[0037] The utility model solves the problem that the existing fixing bolt 3 has poor corrosion resistance. The sealing ring 14 can make the fixing bolt 3 have better corrosion resistance.

[0038] A top plate 4 is slidably provided inside the high-pressure flange body 1, and a fixing bolt 3 is attached to the top of the top plate 4, and the outer end of the top plate 4 is slidably connected to the fixing rod 5, and the upper and lower ends of the fixing rod 5 are fixed to the interior of the high-pressure flange body 1, and the top of the outer end of the top plate 4 is connected to a pull rope 7, and the pull rope 7 is wound through the interior of the high-pressure flange body 1 and connected to the winding roller 8, and the middle key of the winding roller 8 is connected to the front end of the rotating rod 9, and the front and rear ends of the rotating rod 9 are connected to the interior of the high-pressure flange body 1 through bearings, the rear end key of the rotating rod 9 is connected to the gear 11, and the outer end right side of the gear 11 is meshed with a push rod 12, and the push rod 12 slides inside the high-pressure flange body 1, and the top of the push rod 12 extends into the interior of the storage rod 13 to form a sealed sliding connection mechanism, and the storage rod 13 is nested in the interior of the high-pressure flange body 1, and the interior of the storage rod 13 contains air, and the top of the storage rod 13 is connected to the sealing ring 14 through a pipe, and the sealing ring 14 is fixed to the interior of the high-pressure flange body 1;

[0039] refer to Figure 1 、 Figure 2 、 Figures 3 to 6 , by passing the fixing bolt 3 through the high-pressure flange body 1, and then rotating the fixing bolt 3, the thread on the fixing bolt 3 will be threadedly connected with the other high-pressure flange body 1, thereby achieving the purpose of connecting the high-pressure flange body 1, and then the food liquid can be transported through the high-pressure flange body 1, and then the movement of the fixing bolt 3 will squeeze the top plate 4, so that the top plate 4 moves and slides on the fixing rod 5, and the movement of the top plate 4 will squeeze the first spring 6, so that the first spring 6 is compressed, and the movement of the top plate 4 will pull the pull rope 7 to move, so that the pull rope 7 can drive the winding roller 8 to rotate, so that the winding roller 8 rotates and drives the gear 11 to rotate through the rotating rod 9, and then the gear 11 rotates and drives the top rod 12 to move, and then the movement of the top rod 12 will transport the gas inside the storage rod 13 to the inside of the sealing ring 14, so that the inside of the sealing ring 14 expands due to the air, so that the gap between the fixing bolt 3 and the high-pressure flange body 1 can be sealed, thereby avoiding liquid erosion, thereby improving corrosion resistance;

[0040] Example 3:

[0041] The utility model solves the problem that the top plate 4 is difficult to reset in the second embodiment. The top plate 4 can be easily reset by the first spring 6, thereby facilitating the next use.

[0042] A first spring 6 is attached to the bottom of the outer end of the top plate 4, and the first spring 6 is nested on the fixed rod 5, and the bottom of the first spring 6 is connected to the inside of the high-pressure flange body 1. A second spring 10 is nested at the front end of the rotating rod 9, and the front end of the second spring 10 is connected to the inside of the high-pressure flange body 1, and the rear end of the second spring 10 is connected to the front end of the winding roller 8.

[0043] refer to Figures 4 to 6 The rotation of the rotary rod 9 will squeeze the second spring 10, so that the second spring 10 is compressed. After the fixing bolt 3 is released from the squeezing of the top plate 4, the top plate 4 can be pushed upward and reset by the first spring 6, and then the pull rope 7 becomes loose, and then the second spring 10 can drive the rotary rod 9 to reverse, so that the gear 11 can drive the top rod 12 to reset, so that the reset of the top rod 12 can generate negative pressure inside the storage rod 13, and then the negative pressure can allow the gas inside the sealing ring 14 to be re-delivered to the inside of the storage rod 13 for the next use.

[0044] Working principle: When using this anti-corrosion food grade high pressure flange, first, refer to Figures 1 to 3 A layer of inner lining 2 is attached to the interior of the high-pressure flange body 1. The anti-corrosion layer 201 can make the inner lining 2 have excellent corrosion resistance, thereby preventing the high-pressure flange body 1 from being corroded when being transported by food liquid, and the anti-rust layer 202 can prevent the high-pressure flange body 1 from rusting after long-term use, thereby increasing the service life of the high-pressure flange body 1;

[0045] refer to Figure 1 、 Figure 2 、 Figures 3 to 6 , by passing the fixing bolt 3 through the high-pressure flange body 1, and then rotating the fixing bolt 3, the thread on the fixing bolt 3 will be threadedly connected with the other high-pressure flange body 1, and then the movement of the fixing bolt 3 will squeeze the top plate 4, so that the top plate 4 moves and slides on the fixing rod 5, and the movement of the top plate 4 will squeeze the first spring 6, so that the pull rope 7 can drive the winding roller 8 to rotate, and then the movement of the top rod 12 will transport the gas inside the storage rod 13 to the inside of the sealing ring 14, so that the inside of the sealing ring 14 expands due to the air, so that the gap between the fixing bolt 3 and the high-pressure flange body 1 can be sealed, thereby improving the corrosion resistance;

[0046] refer to Figures 4 to 6The rotation of the rotary rod 9 will squeeze the second spring 10, so that the second spring 10 is compressed. After the fixing bolt 3 is released from the squeezing of the top plate 4, the first spring 6 can push the top plate 4 upward to reset it, and then the pull rope 7 becomes loose, and then the second spring 10 can drive the rotary rod 9 to reverse, and then the negative pressure can allow the gas inside the sealing ring 14 to be re-transported to the inside of the storage rod 13 for the next use.

[0047] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A corrosion-resistant food-grade high-pressure flange, comprising a high-pressure flange body (1), wherein the high-pressure flange bodies (1) are connected by fixing bolts (3); It is characterized by: Also includes: The high-pressure flange body (1) is nested with an inner liner (2), and the inner liner (2) contains an anti-corrosion layer (201), and the anti-corrosion layer (201) is made of polytetrafluoroethylene material, and the inner liner (2) also contains an anti-rust layer (202), and the anti-rust layer (202) is located at the bottom of the anti-corrosion layer (201), and the anti-rust layer (202) is made of petrolatum anti-corrosion material.

2. The corrosion-resistant food-grade high-pressure flange according to claim 1, characterized in that: A top plate (4) is slidably mounted inside the high-pressure flange body (1), and a fixing bolt (3) is attached to the top of the top plate (4). The outer end of the top plate (4) is slidably connected to a fixing rod (5), and the upper and lower ends of the fixing rod (5) are fixed inside the high-pressure flange body (1).

3. The corrosion-resistant food-grade high-pressure flange according to claim 2, characterized in that: A first spring (6) is attached to the bottom of the outer end of the top plate (4), and the first spring (6) is nested on the fixing rod (5), and the bottom of the first spring (6) is connected to the inside of the high-pressure flange body (1).

4. The corrosion-resistant food-grade high-pressure flange according to claim 3, characterized in that: A pull rope (7) is connected to the top of the outer end of the top plate (4), and the pull rope (7) is connected to the winding roller (8) by being wound inside the high-pressure flange body (1), and the middle key of the winding roller (8) is connected to the front end of the rotating rod (9), and the front and rear ends of the rotating rod (9) are connected to the inside of the high-pressure flange body (1) through bearings.

5. The corrosion-resistant food-grade high-pressure flange according to claim 4, characterized in that: A second spring (10) is nested in the front end of the rotary rod (9), and the front end of the second spring (10) is connected to the interior of the high-pressure flange body (1), and the rear end of the second spring (10) is connected to the front end of the winding roller (8).

6. The corrosion-resistant food-grade high-pressure flange according to claim 5, characterized in that: The rear end of the rotary rod (9) is key-connected with a gear (11), and the right side of the outer end of the gear (11) is engaged with a push rod (12), and the push rod (12) slides inside the high-pressure flange body (1).

7. The corrosion-resistant food-grade high-pressure flange according to claim 6, characterized in that: The top of the push rod (12) extends into the interior of the storage rod (13) to form a sealed sliding connection mechanism, and the storage rod (13) is nested in the interior of the high-pressure flange body (1), and the interior of the storage rod (13) contains air. The top of the storage rod (13) is connected to the sealing ring (14) through a pipeline, and the sealing ring (14) is fixed inside the high-pressure flange body (1).

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